[TASK] Move changelog files into 11.4 folder

The changelog files for the version 11.4 must leave the
master folder now and move to their final home in 11.4.

Resolves: #95106
Releases: master
Change-Id: Icc835750fb914e5ae27398be86bb70f1bfe80021
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/70888


Tested-by: Andreas Fernandez <a.fernandez@scripting-base.de>
Tested-by: core-ci <typo3@b13.com>
Tested-by: Björn Jacob <bjoern.jacob@tritum.de>
Tested-by: Lina Wolf <112@linawolf.de>
Tested-by: Oliver Hader <oliver.hader@typo3.org>
Reviewed-by: Andreas Fernandez <a.fernandez@scripting-base.de>
Reviewed-by: Björn Jacob <bjoern.jacob@tritum.de>
Reviewed-by: Lina Wolf <112@linawolf.de>
Reviewed-by: Oliver Hader <oliver.hader@typo3.org>